1. Be sure the lid is facing away from your back and slide the bladder into the hydration sleeve.
2. Attach the bladder to the top of the sleeve by threading the Velcro attachment through the slit at the top of the bladder. Make sure it’s good and tight when you close the Velcro.
3. Now thread the tube through either hydration port (there’s one on each side of your Oasis 1100, at the top).
4. Your tube can now run down the shoulder strap of your backpack. Just thread the tube through the elastic loop on the shoulder strap.
Optional: put the pack on and bring the tube across your chest and slide the mouth piece under the opposite elastic loop so it doesn’t dangle while you hike.